In the following essay, Omberg contends that Macbeth's failure to produce an heir provides central thematic, structural, and psychological components to the tragedy of Macbeth.

Ever since L. C. Knights held Bradley's interpretation of Shakespearean tragedy up to scorn in “How Many Children Had Lady Macbeth?” the very title of the essay has been associated with the kind of irrelevant speculation that should not be pursued by serious criticism.1 Perhaps as a result of the inspired irony of this title there has been an understandable reluctance to return to the question of the Macbeths' children, which, far from being an unwarranted speculation, is a highly relevant issue in the development of the plot and the destiny of the main characters in Macbeth. As far back as 1916 Freud...